In his first-ever interview, the sole Australian survivor of the Waco siege has revealed to 60 Minutes what really took place during the 51-day stand-off, and why he believes crazed cult leader David Koresh will one day return to Earth as the son of God.

Rebel Wilson fights for lost movie cash

Rebel Wilson could have commanded up to $6 million a film but missed out on the rich roles because of defamatory articles written about her, a Hollywood agent says.

Wilson has won the fight to allow agent and producer Peter Principato to give evidence in her claims for damages after winning her defamation action against Bauer Media.

Principato believes Wilson would have received $5 million to $6 million following on from the success of her film Pitch Perfect 2 if not for the articles.

The claim emerged on Monday as Wilson applied for special damages in the Victorian Supreme Court in her bid to recoup millions in lost earnings.

The publisher of Woman's Day, Australian Women's Weekly, NW and OK magazines was found to have defamed Wilson in eight articles in May 2015 by claiming she was a serial liar about her real name, age and childhood to make it in Hollywood.

Wilson's lawyers maintain she's owed millions because she lost roles in the movies Kung Fu Panda 3 and Trolls after the series of defamatory articles was published.

However, Bauer barrister Georgina Schoff QC argued Principato's evidence on Wilson's claimed losses as a result of the articles was mere speculation and should be deemed inadmissible.